Fountain-cuspidor.



J. 1); WILSON.

FOUNTAIN OUSPIDOE.

APPLICATION FILED AUG. 11' 1909.

Patented Nov. 8, 1910.

INVENTOR J2me; fl M78012 W/ TNE SSE 8 UNITE T TQ.

JAMES DAWSON WILSON, OF WEBSTER GROVES, MISSOURI.

FOUNTAIN-CUSPLDOR;

Specification of Letters Patent.

Patented Nov. 8, 1910.

Application filed August 11, 1909. Serial No. 512,330.

To all whom it may concern:

Be it known that I, JAMns DAWSON VIL- SON, a citizen of the UnitedStates, and a resident of Webster Groves, in the county of St. Louis andState of Missouri, have invented a new and Improved Fountain- Cuspidor,of which the following is a full, clear, and exact description.

The invention is an improvement in fountain cuspidors as are used bydentists and others, and has in view a construction embodying a salivareceptacle, a basin or bowl forming the mouth of the receptacle, a waterreservoir upon which the said receptacle is seated, a chamber at thebottom of the reservoir provided with a water inlet valve, a dischargeconduit leading from the lower portion of the chamber to the bowl, andan air compressor discharging into the chamber to expel the watertherein into the bowl through the conduit.

Reference is to be had to the accompanying drawing forming a part ofthis specification, wherein is shown in central vertical section acuspidor constructed in accordance with my invention.

The cuspidor in its preferred embodiment has a water reservoir 5, shownto be of spherical form and made of two half sections connected togetherat the joint 5, the upper section having a funnel-shaped body 6 joinedto the top thereof, in which is seated a correspondingly-shaped salivareceptacle 7. A bowl or basin 8 seats on the top of the body 6 anddischarges at the center into the receptacle 7, the bowl being removablyheld in place by a ring 9 secured to its under side and closely fittinginto the mouth of the body 6. The reservoir, funnelshaped body, salivareceptacle and bowl 8 are ordinarily of spun metal, the receptacle beingprovided with a handle 10 by which it is lifted from the funnel-shapedbody. and the handle being constructed to fold within the body below thebowl, as shown in the drawing figure. A bowl or basin 11 of glass orother suitable material is seated in and conforms to the metal bowl 8,the metal bowl serving as a support for the glass and preventing thesaliva or water from'leaking out and running down the side of thecuspidor should the glass be cracked or broken.

In the bottom of the reservoir is a water chamber 12, the bottom properof the chamber being arranged a slight distance above the bottom of thereservoir and provided with a water inlet valve 13, the Water being freeto pass from the reservoir underneath this valve through a number ofopenin s 14 in the casing by which the walls of the chamber are formed.Leading from a point near the bottom of the chamber is a dischargeconduit or tube 15 which passes be tween the body 6 and the receptacle 7at the lower portions thereof and thence extends through the body 6 andover the top edge of and into the bowl 11, a union 16 being provided inthe conduit atthe top edge of the bowl in order that that portion orsection of the conduit Within the bowl may be swung upwardly out of theway when the bowl is removed, the discharge end of this portion of theconduit when in operative position being directed to cause the Water toflow around the inclined bottom of the bowl one or more times beforepassing into the saliva receptacle.

An air compressor, which in the embodiment of my invention shown is inthe nature of a compressible bulb 17 having a vent opening 18 at thetop, discharges into the upper portion of the water chamber 12, the airbeing conducted through a flexible tube or hose 19 and a tube orpipe'20, the latter extending from a point at the outside of thefunnel-shaped body 6 between this body and the receptacle 7, similarlyto the conduit 15, the saliva receptacle 7 being reduced in diameter orgrooved at the lower portion for this purpose. The bulb 17 ispreferably, though not necessarily, foot actuated, in which operationthe foot closes the ventopening 18 and forces the air in the bulb intothe water chamber 12, discharging the water contained therein throughthe tube 15 into the bowl 16 to wash saliva and other refuse thereoninto the receptacle 7. On releasing the bulb 17 it is instantly inflatedby reason of the resiliency of its walls and the air rushing in throughthe vent opening 18. The water pressure in the reservoir lifts the valve13 and again fills the water chamber, the air passing out of the latterthrough the pipe 20 and tube 19 when the cuspidor is once more inreadiness for operation. The cuspidor when used by a dentist willordinarily be supported by the usual forked bracket 20 of the chair,shown in dotted outline in the drawing figure, the fork engaging thefunnel-shaped body 6 close to the reservoir 5.

Having thus described my invention, I

claim as new and desire to secure by Letters Patent: 1

l. The combination in a cuspidor, of a saliva receptacle having a bowldischarging therein, a water reservoir, a water chamber having adischarge conduit passing to the bowl and provided with avalve-controlled inlet opening leading from the reservoir, and an aircompressor discharging into the chamber toforce the water thereinthrough the conduit into the bowl.

2. The combination in a cuspidor, of a saliva receptacle having a bowldischarging therein, a water reservoir on which the receptacle isseated, a water chamber within .the reservoir, having a dischargeconduit passing to the bowl, and an air compressor discharging into thechamber to force the water therein through the conduit into the bowl. I

E). The combination in a cuspidor, of a saliva receptacle having a bowldischarging therein, a water reservoir arranged below the bowl, .a waterchamber arrang'edin the lower portion of the reservoir, having an inletvalve for the water, a conduit leading from the lower portion of thechamber to the bowl, and an air compressor discharging into the upperportion of the chamber.

4. The combination in a cuspidor, of a Water reservoir, a salivareceptacle seated on the reservoir, a bowl supported over the receptacleand discharging therein, a water chamber arranged within the reservoir,having a valve-controlled inlet for the water, a conduit leading fromthe chamber to the bowl, and an air compressor discharging into thechamber to deliver the water from the chamber into the bowl through saidconduit.

5. The combination in a cuspidor, of a water reservoir, a salivareceptacle arranged above the reservoir and having a bowl dischargingtherein, a casing arranged at the bottom of the reservoir, said casinghaving water inlet openings at the lower portion thereof and providedwith a water chamber above said openings, with the bottom of the chamberhaving a water inlet valve, a com pressible air bulb discharging intothe upper portion of the chamber, and a conduit leading from the lowerportion of the chamber to the bowl.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JAMES DAVVSON WVILSON.

Witnesses;

O. M. OGDEN, F. J. PAULUS.

